2025 Audi A4 allroad vs 2026 Mercedes-Benz GLB

$47,600 · Wagon

$43,800 · Crossover

Comparison Overview

The most significant numerical gap between the 2025 Audi A4 allroad and the 2026 Mercedes-Benz GLB is the 40 horsepower advantage held by the Audi, delivering 261 hp compared to the GLB's 221 hp. The Audi also boasts a higher torque figure at 273 lb-ft versus 258 lb-ft. However, the GLB carries a $3,800 MSRP advantage, starting at $43,800 against the Audi's $47,600 entry price. Fuel economy slightly favors the Mercedes crossover, achieving 28 combined MPG compared to the Audi wagon's 26 combined MPG, although the Audi provides superior rear-wheel traction via its standard all-wheel drive system against the GLB's front-wheel drive baseline. Dimensionally, the Audi is 5.1 inches longer (187.5 vs 182.4 inches) but the GLB offers a substantially higher stance at 66.7 inches versus the allroad's 58.8 inches.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLB

The Mercedes-Benz GLB achieves superior fuel efficiency at 28 combined MPG compared to the Audi A4 allroad's 26 MPG, lowering running costs.

👨‍👩‍👧‍👦 Best for Families

2025 Audi A4 allroad

The Audi A4 allroad offers slightly more usable trunk space with 24.2 cu ft compared to the GLB's 22 cu ft.

🏎️ Best for Enthusiasts

2025 Audi A4 allroad

The 2025 Audi A4 allroad delivers notably higher performance specifications with 261 hp and 273 lb-ft of torque.

💰 Best Value

2026 Mercedes-Benz GLB

The Mercedes-Benz GLB presents a compelling package with a $3,800 lower starting MSRP than the Audi A4 allroad.

Choose the Audi A4 allroad if...

Performance metrics are critical, as the 261 hp engine output significantly outpaces the competitor.
All-wheel traction is mandatory, given the standard all-wheel drive system on the A4 allroad.
A slightly larger cargo area of 24.2 cu ft is preferred over the GLB's 22 cu ft capacity.

Choose the Mercedes-Benz GLB if...

Budget sensitivity is high, evidenced by the $3,800 lower starting MSRP of $43,800.
Maximizing fuel economy is a priority, as the GLB achieves 28 combined MPG.
A taller ride height (66.7 inches) for better visibility is desired over the lower wagon profile.

Key Dimensions

Dimension	Audi A4 allroad	Mercedes-Benz GLB
Length	187.5"	182.4"
Width	72.7"	72.2"
Height	58.8"	66.7"
Wheelbase	110.9"	111.4"

Features Comparison

Safety

Feature	Audi	Mercedes-Benz
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	—
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Multi-Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Front Fog Lights	—	✓
Front Height Adjustable Headrests	—	✓
Anti-Theft Alarm System (Remote)	—	✓

Engine

Feature	Audi	Mercedes-Benz
Base Engine Displacement	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	mild hybrid	mild hybrid
Horsepower	261 hp @ 6300 rpm	221 hp @ 5500 rpm
Torque	273 lb-ft @ 4200 rpm	258 lb-ft @ 1800 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Audi	Mercedes-Benz
Transmission Type	7-speed automated manual	8-speed automated manual
Drivetrain Type	all wheel drive	front wheel drive
Center Differential Type	Limited Slip	—
Hill Descent Control	✓	—

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	23/30 MPG	25/33 MPG
EPA Fuel Economy (Combined)	26 MPG	28 MPG
EPA Driving Range (City/Highway)	351.9/459.0 mi.	397.5/524.7 mi.
Fuel Tank Capacity	15.3 gal.	15.9 gal.

Comfort & Convenience

Feature	Audi	Mercedes-Benz
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Adaptive Cruise Control	✓	—
Universal Remote Transmitter	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	—
Three Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	—
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Cargo Floor Mats	✓	—
Cruise Control on Steering Wheel	—	✓
Driver Assisted Parking Assist	—	✓
Cruise Control	—	✓
Overhead Console with Storage	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	10.1 in	10.25 in
AM/FM Stereo	✓	✓
Stereo Power	180W	—
Speaker System	10	—
Android Auto (Wired)	✓	—
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Android Auto (Wireless)	—	✓
Satellite Radio	—	✓
Satellite Radio Trial Period	—	6 months

Power Feature

Feature	Audi	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	—
Remote Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	37.4 in.	40.7 in.
Front Leg Room	41.3 in.	41.1 in.
Front Shoulder Room	55.9 in.	55.9 in.
Seat Material: Leather	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Passenger Seat Power Adjustments	8-way	8-way
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leatherette	—	✓
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	37.4 in.	39.3 in.
Rear Leg Room	35.7 in.	38.1 in.
Rear Shoulder Room	54.5 in.	54.9 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	18 x 7.5 in	18 x 7.5 in
Tire Type	All Season	—
Tire Size	245/45R H	235/55R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Run Flat Tires	—	✓

Suspension

Feature	Audi	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	—	✓
Rear Stabilizer Bar	—	✓

Warranty

Feature	Audi	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi A4 allroad and 2026 Mercedes-Benz GLB.

Which vehicle offers better acceleration capabilities?

The 2025 Audi A4 allroad is analytically quicker due to its higher output, producing 261 hp and 273 lb-ft of torque. The 2026 Mercedes-Benz GLB provides a milder 221 hp and 258 lb-ft of torque baseline.

What is the functional difference in drivetrain setup?

The Audi A4 allroad comes standard with all-wheel drive for enhanced traction management across varied surfaces. Conversely, the 2026 Mercedes-Benz GLB utilizes a front-wheel drive platform in its base configuration.

How does the fuel requirement affect long-term ownership costs?

Both vehicles mandate premium unleaded fuel, but the Audi recommends it while the Mercedes requires it. The GLB's better efficiency (28 combined MPG vs. 26 combined MPG) may partially offset the premium fuel cost.

Is the Audi A4 allroad significantly larger than the Mercedes GLB?

Yes, the Audi is 5.1 inches longer in overall length (187.5 inches vs. 182.4 inches) and has a more conventional lower profile (58.8 inches high). The GLB stands 66.7 inches tall, offering greater ground clearance.

How does the price difference relate to the transmission technology?

The Audi commands a $3,800 premium despite both utilizing an automated manual transmission; the Audi features a 7-speed unit, while the GLB employs an 8-speed unit.

Which vehicle offers more utility based purely on cargo space figures?

The Audi A4 allroad's wagon body style translates to 24.2 cubic feet of stated cargo capacity. The Mercedes-Benz GLB offers 22 cubic feet, making the Audi marginally more accommodating for luggage.